Effects of various conditions of solution and quench treatment on mechanical properties and conductivity of B93пч aluminum alloys were investigated, which including solution time and temperature, water temperature and transfer time during quench, as well as delay time after quench. It reveals that optimal treatment condition of the alloy is heating at 470 ℃ for 40 minutes. Quenching in water of 40 ℃ brings the alloy good combination of strength and plasticity, and also high conductivity. Though the best quenching effect, properties of alloy will decrease with the increase of transfer time. Moreover, at room temperature the strength of alloy is on a downward trend with the increase of delay time after quench expands, and the properties is relatively stable when aging treatment is carried out within 2 hours or more than 24 hours after quench.